HP Compaq nx6110/nc6110 and
nx6120/nc6120 Notebook PCs
Document Part Number: 373146-001
February 2005
This guide is a troubleshooting reference used for maintaining
and servicing the notebook. It provides comprehensive
information on identifying notebook features, components, and
spare parts; troubleshooting notebook problems; and performing
notebook disassembly procedures.
Microsoft and Windows are U.S. registered trademarks of Microsoft
Corporation. Intel, Pentium, and Celeron are trademarks or registered
trademarks of Intel Corporation or its subsidiaries in the United States and
other countries. Bluetooth is a trademark owned by its proprietor and used
by Hewlett-Packard Company under license.
The information contained herein is subject to change without notice. The
only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing
herein should be construed as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or omissions contained herein.
Maintenance and Service Guide
HP Compaq nx6110/nc6110 and nx6120/nc6120
Notebook
PCs
First Edition February 2005
Document Part Number: 373146-001
The HP Compaq nx6110/nc6110 and nx6120/nc6120
Notebook
and Celeron® processors, and extensive multimedia support.
PCs offer advanced modularity, Intel® Pentium® M
1
HP Compaq nx6110/nc6110 and nx6120/nc6120
Notebook PCs
Maintenance and Service Guide1–1
Product Description
1.1Features
■ The following processors are available, varying by
notebook
❏ Intel Pentium M 2.13-, 2.00-, 1.86-, 1.73-, 1.60-, or
❏ Intel Celeron 1.5- or 1.4-GHz
■ The following displays are available, varying by
notebook
❏ 15.0-inch, SXGA+WVA, TFT (1400 × 1050) with over
❏ 15.0-inch, XGA, TFT (1280 × 800) with over 16.8 million
❏ 14.1-inch, XGA, TFT (1280 × 800) with over 16.8 million
■ 80-, 60-, 40-, or 30-GB high-capacity hard drive, varying by
notebook model
■ 256-MB DDR2 synchronous DRAM (SDRAM) at 400 and
533 MHz, expandable to 2.0 GB
■ Microsoft® Windows® XP Home Edition or Windows XP
Professional, varying by notebook model
■ Full-size Windows keyboard with embedded numeric keypad
■ TouchPad pointing device, including a dedicated vertical
scroll region and a button that enables/disables TouchPad
operation.
■ Integrated 10 Base-T/100 Base-TX Ethernet local area
network (LAN) network interface card (NIC) with RJ-45 jack
■ Integrated high-speed 56K modem with RJ-11 jack
■ Integrated wireless support for Mini PCI IEEE 802.11b or
802.11b/g WLAN device
■ Support for one or two Type II PC Card slots, with support
for
notebook model
model:
1.30-GHz processor,
model:
million colors
16.8
colors
colors
both 32-bit (CardBus) and 16-bit PC Cards, varying by
1–2Maintenance and Service Guide
Product Description
■ External 65-watt AC adapter with 3-wire power cord, varying
by notebook model
■ 6-cell Li-Ion battery pack
■ Stereo speakers
■ Volume up, volume mute, and volume down buttons
(full-featured models only)
Numerous references are made throughout this Maintenance
✎
Service Guide to “full-featured” and “defeatured” units. A
and
notebook model is considered to be full-featured if it has
Universal Serial Bus ports, 2 PC Card slots, and the following
4
components:
■ Volume control buttons
■ Info Center button
■ Infrared port
■ 6-in-1 Digital Media Slot
■ Serial port
■ Parallel port
■ S-Video-out jack
■ Docking connector
A notebook model is considered to be defeatured if it has only
Universal Serial Bus ports, 1 PC Card slot, and none of the
2
components in the preceding list.
■ Support for the following optical drives:
❏ DVD±RW and CD-RW Combo Drive
❏ DVD/CD-RW Combo Drive
❏ DVD-ROM drive
❏ CD-ROM drive
Maintenance and Service Guide1–3
Product Description
■ Connectors:
❏ Audio-out (headphone)
❏ Audio-in (microphone)
❏ Universal Serial Bus (USB) v. 2.0 (4 ports on full-featured
❏ Power
❏ External monitor
❏ RJ-11 (modem)
❏ RJ-45 (network)
❏ IEEE 1394
❏ Travel battery
❏ Infrared (full-featured models only)
❏ Digital Media Slot (full-featured models only)
❏ Parallel port (full-featured models only)
❏ S-Video-out (full-featured models only)
❏ Docking connector (full-featured models only)
notebook models, 2 ports on defeatured notebook models)
1.2 Resetting the Notebook
If the notebook you are servicing has an unknown password,
follow these steps to clear the password. These steps also
CMOS:
clear
1. Prepare the notebook for disassembly (refer to Section 5.3,
“Preparing the Notebook for Disassembly,” for more
information).
2. Remove the real-time clock (RTC) battery (refer to
Section 5.17, “RTC Battery,” for more information on
removing and replacing the RTC battery).
1–4Maintenance and Service Guide
3. Wait approximately 5 minutes.
4. Replace the RTC battery and reassemble the notebook.
5. Connect AC power to the notebook. Do not reinsert any
battery packs at this time.
6. Turn on the notebook.
All passwords and all CMOS settings have been cleared.
1.3Power Management
The notebook comes with power management features that
extend battery operating time and conserve power. The
notebook
■ Standby
■ Hibernation
■ Setting customization by the user
■ Hotkeys for setting the level of performance
■ Battery calibration
supports the following power management features:
Product Description
■ Lid switch standby/resume
■ Power/standby button
■ Advanced Configuration and Power Management (ACPM)
compliance
Maintenance and Service Guide1–5
Product Description
1.4 External Components
The external components on the front of the notebook are shown
below and described in
Front Components
Table 1-1.
Tabl e 1-1
Front Components
ItemComponentFunction
1Infrared port
(full-featured models
only)
2Stereo speakers (2)Produce stereo sound.
3Display release latchOpens the notebook.
1–6Maintenance and Service Guide
Provides wireless communication between
the notebook and an optional
IrDA-compliant device.
Tabl e 1-1
Product Description
Front Components
(Continued)
ItemComponentFunction
4Wireless lightOn: an integrated wireless device has been
enabled.
5Power/standby light
6Battery light■ Amber: A battery pack is charging.
7Integrated Drive
Electronics (IDE) drive
light
■ Green: The notebook is on.
■ Blinking green: The notebook is in
standby mode.
■ Off: The notebook is off or in hibernation.
■ Green: A battery pack is close to full
charge capacity.
■ Blinking amber: A battery pack that is the
only available power source has reached
a low-battery condition. When the battery
reaches a critical low-battery condition,
the battery light begins blinking more
quickly.
■ Off: If the notebook is connected to an
external power source, the light is turned
off when all batteries in the notebook are
fully charged. If the notebook is not
connected to an external power source,
the light is turned off until the battery
reaches a low-battery condition.
Blinking: The hard drive or optical drive is
being accessed.
The external components on the right side of the notebook are
shown below and described in
Right-Side Components
Table 1-2.
1–8Maintenance and Service Guide
Tabl e 1-2
Product Description
Right-Side Components
ItemComponentFunction
1Audio-out
(headphone)
2Audio-in
(microphone)
3USB ports (2)
(full-featured models
only)
4Optical driveSupports an optical disc. The type of optical
5Serial port
(full-featured models
only)
jack
jack
Connect optional headphones or powered
stereo speakers. Also connects the audio
function of an audio/video device such as
a
television or VCR.
Connects an optional monaural
microphone.
Connect USB 1.1- and 2.0-compliant
devices to the notebook using a standard
USB cable, or connect an optional External
MultiBay II to the notebook. The MultiBay II
must also be connected to an external
power source.
drive varies by model.
Connects an optional serial device.
Maintenance and Service Guide1–9
Product Description
The external components on the left side of the notebook are
shown below and described in
Left-Side Components
Table 1-3.
Tabl e 1-3
Left-Side Components
ItemComponentFunction
1USB ports (2)Connect USB 1.1- and 2.0-compliant
devices to the notebook using a standard
USB cable, or connect an optional External
MultiBay II to the notebook. The MultiBay II
must also be connected to an external
power source.
2External monitor portConnects an optional VGA external monitor
or projector.
1–10Maintenance and Service Guide
Tabl e 1-3
Product Description
Left-Side Components
(Continued)
ItemComponentFunction
3Exhaust ventProvides airflow to cool internal
components.
To prevent overheating, do not
Ä
obstruct vents. Do not allow a hard
surface, such as a printer, or a soft
surface, such as pillows, thick rugs,
or clothing, to block airflow.
4RJ-11 (modem) jackConnects the modem cable.
5RJ-45 (network) jackConnects an optional network cable.
61394 portConnects an optional 1394a device such
as
a scanner, digital camera, or digital
camcorder.
7PC Card slots (2 slots
8PC Card eject buttons
on full-featured
models, 1 slot on
defeatured models)
(2 buttons on
full-featured models,
1
button on defeatured
models)
Support an optional Type I, Type II, or
III 32-bit (CardBus) or 16-bit PC Card.
Ty pe
Eject an optional PC Card from the
PC
Card slot.
Maintenance and Service Guide1–11
Product Description
The external components on the rear panel of the notebook are
shown below and described in Table 1-4.
Rear Panel Components
1–12Maintenance and Service Guide
Product Description
Table 1-4
Rear Panel Components
ItemComponentFunction
1Security cable slotAttaches an optional security cable to the
notebook.
Security solutions are designed to
Ä
act as deterrents. These deterrents
may not prevent a product from
being mishandled or stolen.
2Battery bayHolds a battery pack.
3Power connectorConnects an AC adapter or an optional
4Parallel port
(full-featured models
only)
5S-Video-out jack
(full-featured models
only)
automobile or aircraft adapter.
Connects an optional parallel device, such
as an external diskette drive or a printer.
Connects an optional S-Video device,
such as a television, VCR, camcorder,
projector, or video capture card.
Maintenance and Service Guide1–13
Product Description
The standard keyboard components of the notebook are shown
below and described in Table 1-5.
Standard Keyboard Components
1–14Maintenance and Service Guide
Product Description
Table 1-5
Standard Keyboard Components
ItemComponentFunction
1f1 to f12 keys (12)Perform system and application tasks.
When combined with the fn key, several
keys and buttons perform additional tasks
as hotkeys.
2caps lock keyEnables caps lock and turns on the caps
lock light.
3fnkeyExecutes frequently used system
functions when pressed in combination
with a function key or the esc key.
4Windows logo keyIn Windows, displays the Windows
menu.
Start
5Windows
applications
6Arrow keysMoves the cursor around the screen.
key
In Windows, displays a shortcut menu
items beneath the pointer.
for
7Keypad keys (15)In Windows, can be used like the keys
8num lock keyEnables numeric lock, turns on the
Maintenance and Service Guide1–15
an external numeric keypad.
on
embedded numeric keypad, and turns
on
the num lock light.
Product Description
The notebook top components are shown below and described in
Table 1-6.
Top Components, Part 1
Table 1-6
Top Components, Part 1
ItemComponentFunction
1Power/standby buttonWhen the notebook is:
■ Off, press to turn on the notebook.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume from
standby.
■ In hibernation, briefly press to restore
from hibernation.
If the system has stopped responding and
Windows shutdown procedures cannot be
used, press and hold for 5 seconds to turn
off the notebook.
1–16Maintenance and Service Guide
Table 1-6
Product Description
Top Components, Part 1
(Continued)
ItemComponentFunction
2Display lid switch■ If the notebook is closed while on, turns
off the display.
■ If the notebook is opened while in
standby, turns on the notebook
(resumes from standby).
3Info Center button
(full-featured models
only)
4Wireless buttonTurns the wireless functionality on or off,
5Presentation mode
button
6Caps lock lightOn: caps lock is on.
7Num lock lightOn: num lock or the numeric keypad is on.
Launches Info Center.
but does not create a wireless connection.
To establish a wireless connection,
✎
a wireless network must already be
set up.
Turns on Presentation mode.
Maintenance and Service Guide1–17
Product Description
The notebook top components are continued below and described
in Table 1-7.
Top Components, Part 2
1–18Maintenance and Service Guide
Table 1-7
Top Components, Part 2
ItemComponentFunction
Product Description
1Volume mute button
(full-featured models
only)
2Volume down button
(full-featured models
only)
3Volume up button
(full-featured models
only)
4TouchPadMoves the pointer and selects or activates
5Left/right TouchPad
buttons
6TouchPad scroll zoneScrolls up or down.
Mutes or restores system volume.
Decreases system volume.
Increases system volume.
items on the screen. Can be set to perform
other mouse functions, such as scrolling,
selecting, and double-clicking.
Function like the left and right buttons on
an external mouse.
Maintenance and Service Guide1–19
Product Description
The external components on the bottom of the notebook are
shown below and described in
Bottom Components
Table 1-8.
Table 1 -8
Bottom Components
ItemComponentFunction
1Primary battery bayHolds the primary battery pack.
2Primary battery locking
latch
3Docking connector
(full-featured models only)
1–20Maintenance and Service Guide
Secures the primary battery pack into
the battery bay.
Connects the notebook to an optional
docking device.
Table 1 -8
Product Description
Bottom Components
(Continued)
ItemComponentFunction
4Memory module
compartment
Mini PCI compartment
5Hard drive bayHolds the primary hard drive.
6Primary battery release
latch
7Travel battery connectorConnects an optional travel battery.
Contains 2 memory slots that support
replaceable memory modules. The
number of preinstalled memory
modules varies by notebook model.
Holds an optional wireless LAN device.
To prevent an unresponsive
Ä
system and the display of a
warning message, install only a
Mini PCI device authorized for
use in your notebook by the
governmental agency that
regulates wireless devices in your
country. If you install a device
and then receive a warning
message, remove the device to
restore notebook functionality.
Then contact Customer Care.
Releases the primary battery pack from
the battery bay.
8FanProvides airflow to cool internal
Maintenance and Service Guide1–21
components.
To prevent overheating, do not
Ä
obstruct fans. Do not allow a hard
surface, such as a printer, or a
soft surface, such as pillows,
thick rugs, or clothing, to block
airflow.
Product Description
1.5Design Overview
This section presents a design overview of key parts and features
of the notebook. Refer to
to identify replacement parts, and Chapter 5, “Removal and
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■ Memory module
■ Mini PCI communications devices
■ Hard drive
■ Display
■ Keyboard and TouchPad
■ Audio
■ Intel Pentium M and Intel Celeron processors
■ PC Card
CAUTION: To properly ventilate the notebook, allow at least a 7.6--cm
Ä
(3-inch) clearance on the left and right sides of the notebook.
Chapter 3, “Illustrated Parts Catalog,”
The notebook uses an electric fan for ventilation. The fan is
controlled by a temperature sensor and is designed to be turned
on automatically when high temperature conditions exist. These
conditions are affected by high external temperatures, system
power consumption, power management/battery conservation
configurations, battery fast charging, and software applications.
Exhaust air is displaced through the ventilation grill located on
the left side of the notebook.
1–22Maintenance and Service Guide
Troubleshooting
WARNING: Only authorized technicians trained by HP should repair
Å
this equipment. All troubleshooting and repair procedures are detailed
to allow only subassembly-/module-level repair. Because of the
complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board
modification may void any warranty or exchange allowances.
2.1 Computer Setup
Computer Setup is a system information and customization utility
that can be used even when the operating system is not working
or will not load. This utility includes settings that are not
available in Windows.
2
Using Computer Setup
Information and settings in Computer Setup are accessed from
the Main, Security, Advanced, or Tools menus:
1. Turn on or restart the notebook. Press f10while the
= ROM-Based Setup message is displayed in
F10
lower-left corner of the screen.
the
❏ To change the language, use the cursor control keys
navigate to the Advanced menu.
to
❏ To view navigation information, press f1.
❏ To return to the Computer Setup menu, press esc.
Maintenance and Service Guide2–1
Troubleshooting
2. Select the Main, Security, Advanced, or Tools menu.
3. To close Computer Setup and restart the notebook:
❏ Select Exit > Exit Saving Changes, and then press enter.
— or —
❏ Select Exit > Exit Discarding Changes, and then
enter.
press
— or —
❏ Select Exit > Load Setup Defaults, and then press enter.
4. When you are prompted to confirm your action, press f10.
Selecting from the Main Menu
Table 2 -1
Main Menu
SelectTo Do This
System Information■ Change the system time and system date.
■ View identification information about the
notebook.
■ View specification information about the
processor, memory and cache size, and
system ROM.
2–2Maintenance and Service Guide
Selecting from the Security Menu
Table 2 -2
Troubleshooting
Security Menu
SelectTo Do This
Administrator PasswordEnter, change, or delete an Administrator
password.
Power-on PasswordEnter, change, or delete a power-on password.
DriveLock PasswordsEnable/disable DriveLock; change a DriveLock
user or master password.
DriveLock Settings are accessible only
✎
when you enter Computer Setup by turning
on (not restarting) the notebook.
Password Options
(Password options can
selected only when
be
power-on password
a
been set.)
has
Device SecurityEnable/disable:
Enable/disable:
■ QuickLock
■ QuickLock on Standby
■ QuickBlank
To enable QuickLock on Standby or
✎
QuickBlank, you must first enable
QuickLock.
■ Diskette drive startup*
■ CD-ROM or diskette startup
Settings for a DVD-ROM can be entered
✎
the CD-ROM field.
in
*Not applicable to SuperDisk LS-120 drives.
Maintenance and Service Guide2–3
Troubleshooting
Selecting from the Advanced Menu
Table 2 -3
Advanced Menu
SelectTo Do This
LanguageChange the Computer Setup language.
Boot OrderEnable/disable MultiBoot, which sets a startup
sequence that can include most bootable devices
and media in the system.
Accessibility OptionsAllows electronic and information technology to
accessible to people with varying ranges of
be
abilities.
Video MemoryDisplays the amount of video memory available
on the notebook.
Selecting from the Tools Menu
Table 2 -4
Tools M enu
SelectTo Do This
Hard Drive Self TestRun a quick comprehensive self test on hard
drives in the system that support the test features.
2–4Maintenance and Service Guide
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